Explaining a little snippet

[bnashenas1984]

Hi everyone
I don't have any knowledge in JAVA.
Could anyone please explain what this JAVA class does?

What does "Double.POSITIV E_INFINITY" do?

public class Fraga7{
	public static double min (double[] tal){
		double min = Double.POSITIVE_INFINITY;
		for (int i = 0; i < tal.length; i++){
			if (tal[i] < min) min = tal[i];
		}
		return min;
	}
}

Thanks

[Anas Mosaad]

The line in question (Line 3) assigns an initial min value positive infinity. It seemed weird to me but I like it.

Usually, I would set the first item of the list to min and start the loop with 1. However, I have to check if the list is empty and in that case I should return infinity. This snippet does all of this. It returns Infinity if the list is empty (i.e.

min(new double[]{})

). Really a very good one.

[bnashenas1984]

Thanks Anas Mosaad
I appreciate your help

[Anas Mosaad]

You are always welcome :)